I'm having trouble getting the vertical deflection adjusted on my monitor when working in 80 column mode with a Viewmaster 80 (installed in a II+, slot 3). The top and bottom text lines extend beyond the physical screen dimensions. There are also faint vertical lines in 40 column mode. Otherwise, the card seems to work.
The normal 40 column output from the II+ appears fine. I've seen the deflection issue with two different monitors, but neither are "vintage".
Any ideas whether this is a problem with the board itself?
Update: //e enhanced works fine with this monitor in 80 column mode.